Electric cooking-range.



A. H. HAPPE & W. J. KEEP.

ELECTRIC COOKING RANGE.

APPLICATION FILED lune 30.1915.

1, 176,2 17. Patented Mar. 21,1916.

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Ilma-.MI l' A. H. HAPPE &W.1.KEEP.

ELECTRIC COOKING RANGE.

APPLICATION HLED luNE 30.1915.

Patented Mar. 21, 1916.

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ELECTRIC COOKlNG RANGE. APPLxcATloN FILED JUNE 3o, 191,5.

1,176,217. y Patented Mar. 21, 1916.

42 3 SHS-SHEET 3- UNITED STATES PATENT oFFICE.

AHTHURH HAPPH ANDKWILLIAH J. KEEP, or DETROIT, MICHIGAN,- AssIGNoHs To THE MICHIGAN sTovE CCHPANY, or DETROIT, MICHIGAN, A CORPORATION or MICHIGAN.

ELECTRIC CooHING-HANGH Specification of Letters Patent.

Patented Mar. 21, 1916..

applicati@ mea :une so, 1915. serial No. 31,186.

-compact cooking` range embodying al plurality of grids, each containing novel armored elements; second, to furnish a cooking range with a hinged cooking top that permits of easy access being had to the interior of the structure to remove 'cooking'instrumentalities and install electrical devicesythird, to furnish an electric cooking range ofA the abovetype with drip 'pans and deflectors whichvprevent grease, liquids and bolled over matter from interfering with thel electrical connections of the structure; fourth,

`to provide novel switches for controlling the electrical circuits .of the cooking range, each c switch having means for predetermining the operation of the same; fifth, to provide a novel oven electrically heated. from .within itself, and sixth, to provide a durable electricrange wherein the parts are constructed with a.view of reducing the cost of manufacture and at the same time retain the features by which' safety, inexpensive maintenance. and ease of assembling are secured. With such ends in view, our invention resides in the novel construction, combination and arrangement of parts to be herelnafter 4specifically described and then claimed, and

reference will now be had to the drawings, wherein--` l Figure 1 is a plan ofthe bollmg top of an electric cooking range, partly broken away illustrating a deiector; Fi 2` isa front elevation of the boiling top o the electric cooka ing rangej Fig. 3 is an enlarged side elevation of the switch partly broken away and partly in section; Fig. 4 is a front elevation of the same; Fig. 5 1s a longltudinal sectional view of the range boiling top; Fig. 8 is a cross sectionalview of the same; Fig.

7 is a horizontal sectional view of the rangeboiling top looking upwardly at the bottom of the grid housing; Fig. 8-is an enlarged p lan of a grid housing; Fig. 9/is a perspective view of the same inverted; and Fig. 10 1s a dlagrammatic view illustrating the electrical connections of the range boiling top.

In the drawings, the reference numeral 1 denotes acase rectangular in plan, and this case 1s supported on an oven 2,v as shown in Fig. 2.' The case has end walls 3, a front l wall or dial plate 4 and areal' wall 5.. Theend walls 3 and the'rear wall 5 can be made ofsheet metal and the frontwall 4 may be made of cast metal on account of support- 1ng devices that lare essential in the stove structure. i

On the upper edges of the walls 3 and 5 is a rear top plate 6 and hinged or otherwise connected to the front edge of said top plate, as at 7, is a grid plate 8, which coperates with the rear top plate 6in forming the cooking or boiling top of the range. By hinging or otherwise connecting theJgrid plate 8' to the rear top'plate -6, 'and by connecting'the front wall 4 to said grid plate, plate ,and the frnt wall as at 8, said grid constitute a range ront Aportion that can'be raised to permit'of easy access being had to devices within the stove and grid housings carried by the under side of said grid plate. The grid plate 8 has a plurality of rectangular openings 9 and at the sides of said openings are depending bosses 10 to which are connected by screws 11 or similar fastening Ymeans the apertured lugs 12 of grid housings. Each grid housing comprises side walls 13, a bottom plate 14 and a rear wall 15, all preferably made of sheet metal forming a guideway for a drip pan 16 extending through an openin 17 provided therefor in the front wall 4 o the cooking range.

Mounted in each grid housing is a grid frame, comprising .bridge pieces 18 connected tothe inner sides of the walls 13by screws 19 or other fastening means. The ends ofp'the bridge pieces 18 are connected by apertured cross bars 20 and 21. The upper edges of the supports 21 are provided with sets of spacing lugs 22 'adapted to extend into` armored elements 23 placed upon the supports. The armored elements 23 have depending contact blades 24 adjacent the ends thereof, as` shown in Fig. 6, and these armored elements, together with the grid frame, form the subject matter of another'application filed .lune 17th, 1915, Serial No. 34565. As shown in Fig. 6, the armoredelements of each grid are in a plane slightly above the grid plate 8 and the blades 24 of said armored elements extend into spring clip connectors 25, swiveled 'on inwardly projecting brackets 36, carried by the iat apertured bars 20 of thegrid frame.

The armored elements Z5-are in series, as shown in Fi 8 and bared lead wires 27, 28 and 29 exten through insulated supports 30 carried by the side walls 13 ofthe grid housing.l The insulated supports 30 are de-` tachable relative tothe grid housing whereby said supports can be threaded on the lead wires and then connected .to the grid housing. Each support includes washers of insulation 31 and an eyelet 32 through which extends a lead wire. The lead wires 27, 28 and 29 extend downwardly and along `the sides of a heat shield and support'33,

channel shaped iny cross section, with the side walls thereof connected to the' walls 13 of lthe grid housing. The heat shield 33 is in s aced relation to the bottom plate 14 of t e grid housing and prevents certain electri'cal devices carried by the heat shield: from being injured or distorted by heat from the armored elements 23 of the grid. The'bottom of the heat shield 33 is provided with supports 34 for thelead wires 27, 28 and 29 and centrally 'of said heat shield is an angle bracket 35. Suitably connected to the forward end of the angle bracket 35 is a switch 36 extending through an openingv eration of the switch. With thepointers re moved', the switches slide in and out the 'openings of the wall 4, thus facihtatmg the assembling of grid housings below the b ol.

ing top. The connection between the indieating pointer 39 and the operatlng button 38 is vsuch that the indicating pointer 1s moved in advance of a snap operation of the switch, andthe advantages of this construction have been set forth in the pending application of William J. Keep. filed De` cember 26, 1914, Serial No. 879.216 for certain improvements l'in an electric cooking range.

The lead wires 2'( and 28 are connected to the-switch 36 and the lead` wire 29 is con- .nected to a fuse b1ock`40'on the rear end of the angle bracket 35. The fuse block 40 is of the conventional form and is connected by wires 41 and 42 to the switch 36,

The rear or inner end of the centralmost grid housing may be provided with a depending leg or support 43 adapted to ex- .tend into a positioning socket 44, carried by the bottom of the cooking range. The leg or support 43 has a block 45 of insulation for binding posts 46 to which areconnected wires 47 extending to the fuse blockv 40 of the grid housings, as best shown in Fig. 7. Inl some instances, the leg 43 may be dispensed with and simply a support maintained 4for the binding posts 46. The binding posts46 retain spring clips 48 on they block 45 and these spring clips are trical energy, said lead-in wires passing through washers 54 of insulation carried by the Wall 5. The blades 52 are braced by a block of insulation connected to the bottom.

of `the case 1, as at 56, l,whereby the blades 52 cannot become accidentally displaced and" will always be in position to engage the spring clips 48 as said clips are swung through the openings 49 of the casing 50. These switch parts may be duplicated for each`of the grid housings so that each of the housings may be exactly alike.

The front edge of the rear top plate 6. at each. of the openings 9, is provided with an angularlyl disposed delector 57, as best shown in Figs. 1 and 6, and any matter that passes through the rear ends of the openings 9 is deflected into the drip pans 16 and prevented from interfering with electrical connections housing.

Considerable importance is attached to the application of the various devices just described. With the grid plate 8 hinged to the Vtop plate 6, thejgrid plate can be elevatedinsomuch that the blades 52 and the spring` clips 48 constitute a mainline knife switch which ,permitsof the electrical connection beingautomatically broken as the range front portion or grid plate is raised.

With the grid housing detachably connected to theunderside of the grid plate 8. either of the housings can be removed'by disconnecting the wires 47 leading to the fuse lblock 40 of the housing. or the housings can lall be made with independent. lead-in particularly atthe centralmost grid switches. The housings are fabricated independently on a kbench and in assembling the range, are handled as a single'unit.

Whatwe claim is 1. AIn an electric cooking range, a hinged top fhavfing openin' s adapted forboilingl grids and havin" a ront portion, indicating switchesvin the ront portion of said hinged top, a make and break device having a p01-4 tion carried by said hinged top and a portioncarried by said range, and electric connections for that part of said make and break device carried by said range.

2 In an electric cooking range, a case having a front wall, a grid lhousing adapted to ccntain a boiling grid, a removable pan. in said housing',l a cut-out-use block sup- -ported from said housing,- means in said case adapted to establish electrical connections with said fuse block, and a switch'extending through the front lwall of said case connected to said fuse block and adapted to coperate with the front, wall of said case in predetermining theY operative conditions 4of the range.

3. In an electric cooking range, va movable housing, an -electrically heated grid carried thereby, removable means in said housing adapted to catch spilled or boiled over` matter vcooked on said. grid, electrical. devices adapted to control the operation of said grid, and a support for said devices servin-g as a shield between said devices and said housing.

4. In an electric cooking range, a movable h0nsinganelectrically heated grid car-` ried thereby, removable' means in said housing adapted to catch spilled or boiled over matter coo-ked on said grid, a support'below said housing, and a switch carried by said support adapted .to predetermine operativeV conditions of said grid.

5. In an electric cooking range, a movable housing, an electrically heated grid car-- ried thereby, removable means in said housing adapted to catch spilled or boiled'over matter cooked on said grid,la support below said housing, a fuseA block carried by said support, and a switch carried by said support and connected-to said lfuse block and adapted to predetrmine the operation. ofl

said rid.

6. n an electric cooking range, a hinged boiling top, grid housings assembled as portable units and attached tothe bottom -of said boiling to and heating elements forming part of said grid housings.

7. In an electric range, a grid, a fuse block therefonya make and break switch in -circuit with said fuse block and said grid,

lead-in wires for said switch, and movable means inclosing said `fuse block and adapted to actnate said switch to break the circuit llierlof before access can be had to said fuse said top and ,provided with openings, housings, .grids carried thereby and adapted for extending into the-openings of said top, and switches carried by said housings and adapted for extending into the openings in the front wall of said top, the housings being assembled as units relative to said top.-

1.0. In an electric range, a grid, a fuse block, bared wires connecting said fuse blockand grid, a make and break switch, bared wires connecting said switch and fuse block,

insulating supports for said bared wires, lead-in wires for said switch, and means adapted to actuate said switch to break the Acircuit of said fuse' block and, grid before access can be had to said fuse block.

- 11. In an electric cooking range, a hinged top, coperating grids carried thereby, fuse blocks and switches, and a housing connectv ing said fuse blocks, and switches to said hinged top.

12. In an electric cooking range, a hinged top, cooking grids carried thereby, and a make and break switch adapted for the operating circuit of said grids and having a portion thereof carried by said hinged top whereby the operatingcircnit of said grids .is automatically controlled by a, movement` of the hingedtop lrelative to said make and `break switch.

13. In an electric cooking range, a case, a`

hinged top, cooking grids and indicating switchescarried by'said hinged top, an electric circuit for said grids and switches, and a make vand break main line switch adapted to control the electric circuit of said cooking gridsand indicating switches and having separable parts carried by said case and" said hinged top and adapted to automatically break and make the circuit Aof said cooking grids and said indicating switches."

14. In anelectric cooking range, a hinged top. boiling grids attached thereto, and a main lineknife switch for said boiling grids opened by raising said hinged top.

y 15. In an electric cooking` range, a main izo line knife switch, a guard casing theror provided with an opening, and a movable cooking device having a blade adapted to' .enter the opening of said guard casing and enter said switch.

16.` In an electric cooking range. a main line' switch, a guard casing' therefor provided with an opening, cooking devices assembled as a unit movable relativegto said casing and having a blade common to all isc said devices adapted to enter the opening l of said casing and establish a main circuit for said devices.

17. In an electrlc cooklng range, a mam line switch, a guard casing therefor prowith openings, a grid housing in the range front and movable therewith, electrical devices carried thereby, one of said devices extending through an openingin the top portion of the range front, and another of said `devices controlling and predetermining the operative conditions of the last mentioned electrical device.

In testimony whereof we aiiix our signatures in presence of two witnesses.

ARTHUR H. HAPPE. WILLIAM J. KEEP.. Witnesses: JNO. P. CRUDDER, ALFRED J. MURPHY. 

